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We often choose micro bearing when considering a lot of issues, and think is a mess, now small in here summarizes selected micro bearing some of the elements, for your reference.
1. miniature bearings axial load
Main axial load of bearing for thrust bearing, nominal contact A0>450 in the corner of it. Thrust angular contact ball bearings and thrust bearings according to the different structure can bear one or axial load in both directions. When the bear special optimization of high thrust force cylindrical roller bearing and thrust roller bearings.
2. micro bearing its own length compensation
Supporting a shaft and bearings are fixed bearings and bearing combination swimming structure. Free bearing compensating shaft length error and thermal expansion.
3. the miniature bearing radial load
Main radial load bearing for radial bearings. The bearings the nominal contact angle A0<=45 0. Rain the same roller bearings more than ball bearings can accommodate radial loads.
NU and n type cylindrical roller bearings can only accommodate radial loads, other types of radial bearings can accommodate radial loads, can carry axial load.
4. the miniature bearing sliding length compensation
Can not be separated bearings miniature bearings can also be used for swimming. Two rings of these bearings in a tie, no axial fixation. Therefore, the bearing of one ring on its seating can be active.
5. precision of miniature bearings
In most cases General dimensional and running accuracy of rolling bearings will suffice. When more is required, bearing need higher precision,
6. micro bearing speed
Special low friction of single row bearings, so you can reach maximum speed. These bearings can only accommodate radial loads of deep groove ball bearings and angular contact ball bearings can withstand the combined load.
Improve dimensional accuracy, running accuracy of the bearing and the precision of the parts, the lubrication and cooling mode, using a special form of cage can increase the permitted speed of the bearing.
7. micro-friction
Apart from the heating and cooling, internal friction on the bearing operating temperature also play a large role in determining. Low-friction bearing: radial load for deep groove ball bearings, miniature single row angular contact ball bearings and cylindrical roller bearings with a cage. Bearings with contact seals, full complement cylindrical roller bearing and thrust roller bearings produces larger friction.
8. the miniature bearing taper
Bearings with conical bore can be mounted directly on tapered shaft. When you install these bearings can be adjusted for a given radial internal clearance.
Most with a conical bore self-aligning ball bearings, drum-type roller bearings and spherical roller bearings can be installed via an adapter sleeve on a cylindrical shaft. The bearings are particularly easy to install and remove.
9. compensation of miniature bearing without neutral
Does not appear neutral in the shaft neck mating surfaces when surface or housing, particularly in conjunction with surface processing is not completed in a single card. Using the bearing will not. Due to work load shaft bend, causing the outer ring when also appear wrong.